\chapter*{Declaration\markboth{Declaration}{Declaration}}
\addcontentsline{toc}{chapter}{\protect\numberline{}Declaration}

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I hereby affirm that I composed this work independently and used\\ no other than the specified sources and tools and that I marked all\\ quotes as such.
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																																																																	Dresden, 27.04.2008
																																																																					(Weixun Li)



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